Search Strains

wbmIs98 [eft-3p::tomm-20(aa1-49)::mCherry::unc-54 3'UTR] *wbmIs65. Somatic-specific TOMM-20(1-49)::mCherry expression driven by the eft-3p promoter allows imaging of mitochondria without some of the adverse side effects of extrachromosomal arrays. Derived by CRISPR-mediated insertion of TOMM-20::mCherry downstream of tissue-specific eft-3 promoter of wbmIs65 insertion in parental strain WBM1140. wbmIs65 [eft-3p::3XFLAG::dpy-10 crRNA::unc-54 3'UTR] (V:8645000). Reference: Valera-Alberni M, et al. Life Science Alliance Sep 2024, 7 (11) e202402918; DOI: 10.26508/lsa.202402918. PMID: 39071403.

wbmIs83 [rab-3p::3xFlag::TIR1::rab-3 3'UTR] *wbmIs66 IV. Auxin-inducible degron (AID*) and EmGFP tags inserted at the C-terminus of the endogenous raga-1 locus using CRISPR/Cas9. Neuronal-specific expression of TIR1 allows for auxin-inducible degradation of RAGA-1 in the nervous system. wbmIs66 [rab-3p::3XFLAG::dpy-10 crRNA::rab-3 3'UTR] (IV:5015000). Reference: Smith HJ, et al. PLOS Genetics 19(9): e1010938. https://doi.org/10.1371/journal.pgen.1010938. PMID: 37721956.

wbmEx49 [rab-3p::crtc-1(S76A, S179A)::tdTomato::unc-54 UTR]. tdTOMATO-tagged, non-phosphorylatable CRTC-1 expression in neurons. Pick fluorescent animals to maintain. Reference: Burkewitz K, et al. Cell. 2015 Feb 26; 160(5): 842-55.

3xFlag tag inserted at N-temrinus of endogenous rpl-22 locus. Can be used for Single-copy Knock-In Translating Ribosome Immunoprecipitation (SKI TRIP) experiments.

ieSi57 [eft-3p::TIR1::mRuby::unc-54 3'UTR + Cbr-unc-119(+)] II. Auxin-inducible degron (AID*) and EmGFP tags inserted at the C-terminus of the endogenous raga-1 locus using CRISPR/Cas9. Somatic expression of TIR1 allows for auxin-inducible degradation of RAGA-1 in the soma. Reference: Smith HJ, et al. PLOS Genetics 19(9): e1010938. https://doi.org/10.1371/journal.pgen.1010938. PMID: 3772195

GFP tag inserted at the C-terminus of the endogenous tomm-70 locus using CRISPR/Cas9. TOMM-70::GFP expressed in mitochondrial outer membrane. Reference: Valera-Alberni M, et al. Life Science Alliance Sep 2024, 7 (11) e202402918; DOI: 10.26508/lsa.202402918. PMID: 39071403.

Auxin-Inducible Degron (AID*) tag was inserted into the endogenous let-363 coding sequence via CRISPR/Cas9. This strain can be combined with TIR1-expressing strains to induce degradation of LET-363. Reference: Smith HJ, et al. PLoS Genetic. 2023 Sep 18;19(9):e1010938. doi: 10.1371/journal.pgen.1010938. PMID: 37721956.

wrmScarlet tag inserted at the C-terminus of the endogenous scpl-4 locus using CRISPR/Cas9. C.elegans ortholog of human TIMM50 translocase of inner mitochondrial membrane 50. SCPL-4::wrmScarlet expression in inner mitochondrial membrane. Reference: Valera-Alberni M, et al. Life Science Alliance Sep 2024, 7 (11) e202402918; DOI: 10.26508/lsa.202402918. PMID: 39071403.

GFP tag inserted at the C-terminus of the endogenous tomm-70 locus using CRISPR/Cas9. wrmScarlet tag inserted at the C-terminus of the endogenous scpl-4 locus using CRISPR/Cas9. TOMM-70::GFP expressed in mitochondrial outer membrane. SCPL-4::wrmScarlet expression in inner mitochondrial membrane. Reference: Valera-Alberni M, et al. Life Science Alliance Sep 2024, 7 (11) e202402918; DOI: 10.26508/lsa.202402918. PMID: 39071403.

wbmEx57 [acs-2p::GFP + rol-6(su1006)]. Pick Rollers to maintain. Reference: Burkewitz K, et al. Cell. 2015 Feb 26; 160(5): 842-55.

wbmEx64 [rab-3p::nhr-49(cDNA)::unc-54 3'UTR + myo-3p::mCherry::unc54 3'UTR]. mCherry expression in muscle. Pick fluorescent animals to maintain. Reference: Burkewitz K, et al. Cell. 2015 Feb 26; 160(5): 842-55.

wbmEx69 [ges-1p::crtc-1(cDNA S76A, S179A)::tdTOMATO::unc-54 3'UTR]. tdTOMATO-tagged, non-phosphorylatable CRTC-1 expression in intestinal cells. Fluorescence may be difficult to see at lower magnifications. Pick fluorescent animals to maintain. Reference: Burkewitz K, et al. Cell. 2015 Feb 26; 160(5): 842-55.

uthIs205 [crtc-1p::crtc-1::tdTOMATO::unc-54 3'UTR + rol-6(su1006)]. Rollers. tdTOMATO-tagged CRTC-1 expression from native promoter. Reference: Burkewitz K, et al. Cell. 2015 Feb 26; 160(5): 842-55.

wbmEx149 [ges-1p::3xHA::nhr-49(cDNA)::unc-54 3'UTR + myo-3p::mCherry::unc-54 3'UTR]. mCherry expression in muscle cells. Pick fluorescent animals to maintain. Intestine-specific rescue of nhr-49 null animals. Reference: Burkewitz K, et al. Cell. 2015 Feb 26; 160(5): 842-55.

uthIs226 [crtc-1p::crtc-1(S76A, S179A)::tdTOMATO::unc-54 3'UTR + rol-6(su1006)]. Rollers. tdTOMATO-tagged, non-phosphorylatable CRTC-1 expression from native promoter. Constitutively nuclear expression in neurons and intestine. Reference: Burkewitz K, et al. Cell. 2015 Feb 26; 160(5): 842-55.

wenIs1 [acr-5p::Arch::wCherry + lin-15(+)]. RFP expression in B motor neurons. Strain allows optogenetic inactivation of B motor neurons. Reference: Xu T, et al. Proc Natl Acad Sci USA. 2018 May 8;115(19):E4493-E4502. doi: 10.1073/pnas.1717022115. PMID: 29686107.

cwEx266 [cam-1p::cam-1::GFP + rol-6(su1006)]. Pick Rollers to maintain. Unc. GFP-tagged CAM-1 rescues gm122. Generated in N2 background.

cwEx417 [cfz-2p::GFP + rol-6(su1006)]. Pick Rollers to maintain. Generated in N2 background.

cwEx486 [mnp-1p::mnp-1::GFP + rol-6(su1006)]. Pick Rollers to maintain. Generated in N2 background.

rmIs190 [F25B3.3p::Q67::CFP]. hdEx1 [snb-1::ALKBH3::BFP::tbb-2 3’UTR + rol-6(su1006)]. Pick Rollers to maintain. BFP fused to the C-terminus of wild-type ALKBH3. Pan-neuronal CFP expression. Reference: Sun Y, et al. Nature. 2023 Nov;623(7987):580-587. doi: 10.1038/s41586-023-06701-5. PMID: 37938769.

rmIs190 [F25B3.3p::Q67::CFP]. hdEx2 [snb-1::ALKBH3(H257A)::BFP::tbb-2 3’UTR + rol-6(su1006)]. Pick Rollers to maintain. BFP fused to the C-terminus of catalytically inactive ALKBH3(H257A) mutant form of ALKBH3. Pan-neuronal CFP expression. Reference: Sun Y, et al. Nature. 2023 Nov;623(7987):580-587. doi: 10.1038/s41586-023-06701-5. PMID: 37938769.

Heterozygotes are WT and segregate WT, dead eggs and Uncs. At 25C the Unc Spds are Sterile; at 16C the Unc Spds are fertile but produce mostly dead eggs. Unc Spd animals will exhibit a fully penetrant maternal-effect embryonic lethal phenotype if shifted to 25C at the L4 stage. unc-13 spd-2 homozygotes may be propagated at 16C but may become sick causing immense frustration! See also WBPaper00004200.

Poor backward movement. Protrusive vulva. Gonad extrusion. Egg-laying defects. Recessive.

ojEx38 [pie-1::GFP::cmd-1 + unc-119(+)]. Reference: Batchelder et al. (2007) FEBS Lett 581(22):4337-41.

ojIs50 [pie-1p::GFP::air-2 + unc-119(+)]. Wild type looking worms with GFP expression in early embryos. GFP can be seen on stereo microscope in complete darkness with sharp eyes.

ojEx64 [pie-1p::sep-1::GFP + unc-119(+)]. Pick wild-type. Maintain under normal conditions. Reference: Bembenek J, et al. Development. (2007) 134(21):3837-48.

ojEx83 [pie-1p::mCherry::chin-1a + unc-119(+)]. Maintain by picking wild-type. Check occasionally for maintained mCherry expression.

3xHA::TurboID tag inserted at the N-terminus of the endogenous GLH-1. TurboID::GLH-1 promiscuously labels proteins at 20C. Transgene generated in N2 background. Reference: Price I, et al. ELife. 2021 Nov 3;10:e72276. doi: 10.7554/eLife.72276.

3xFlag tag inserted at the C-terminus of the endogenous attf-6 locus. Reference: Wang Y, et al. Nucleic Acids Research. 2025 Feb 28; 53(4): gkaf079. doi: 10.1093/nar/gkaf079 PMID: 39945323.

Temperature sensitive: maintenance at 15-20C. Reduced number of progeny at elevated temperatures. PH domain added to the 3xFLAG::GFP-tagged endogenous wago-4 locus in parental strain YY1325. This allele localizes WAGO-4 to the plasma membrane, but de-localization is not complete (some residual germ granule signal is detected).

Temperature sensitive: maintain at 15-20C. Reduced number of progeny and mortal germline phenotype at elevated temperatures. Mitochondria Targeting Sequence (mts) added to the 3xFLAG::GFP-tagged endogenous wago-4 locus localizes tagged WAGO-4 to mitochondria. This allele was introduced into 3xFlag::GFP tagged endogenous wago-4 locus in parental strain YY1325.

Temperature sensitive: maintain at 15-20C. Reduced number of progeny and mortal germline phenotype at elevated temperatures. Engineered mutations of FG repeats in three Vasa like GLH proteins (GLH-1, GLH-2 and GLH-4). glh-1(jog50) is F to A substitution. glh-4(jog16) is F to A substitution. glh-2(jog49) is a deletion of the FG repeats. This strain exhibits a subtle change in germ granule composition while maintaining their architecture. WAGO-4 is mislocalized to the cytoplasm leading to compromised function.

Temperature sensitive: maintain at 15-20C. Reduced number of progeny at elevated temperatures. wago-4(jog272) is an engineered Y611E point mutation predicted to disrupt small RNA binding and exhibits a diffuse cytoplasmic localization. This allele was introduced into 3xFlag::GFP tagged endogenous wago-4 locus in parental strain YY1325.

3xHA tag inserted at C-terminus of endogenous rps-10 locus. Some growth defects on its own, which can be exacerbated in conjunction with mutants of no-go mRNA decay factors. Reference: Monem PC et al. PLOS Genet. 2023 Jan 10;19(1):e1010577. doi: 10.1371/journal.pgen.1010577. PMID: 36626369

3xHA tag inserted at C-terminus of endogenous rps-20 locus. Reference: Monem PC et al. PLOS Genet. 2023 Jan 10;19(1):e1010577. doi: 10.1371/journal.pgen.1010577. PMID: 36626369

srf780 is a deletion of the Smr nuclease domain of nonu-1. Unc. GFP expression in body wall muscle. Reference: Glover ML, et al. Cell Rep. 2020 Mar 31;30(13):4321-4331.e4. doi: 10.1016/j.celrep.2020.03.023. PMID: 32234470.

neEx15 [myo-2::RFP + myo-2::avr-15(+) + unc-119(+)]. MosSCI recipient strain. neEx15 rescues unc-119, making the worms healthier for injection. The array is counter-selectable. Reference: Shirayama M, et al. Cell. 2012 Jul 6;150(1):65-77.

neIs21 [wago-1::3xFLAG + unc-119(+)]. Reference: Gu, et al. 2009 Mol Cell 36:234-44.

neIs20 [pie-1::3xFLAG::csr-1 + unc-119(+)]. Partially rescues sterility (60% dead embryos). Unknown if unc-119(ed3) is still present in the background. Reference: Claycomb J, et al. 2009 Cell 139:123-34.

neIs22 [wago-1::GFP + unc-119(+)]. Maintain at 24 C to avoid silencing of GFP expression. Reference: Gu, et al. 2009 Mol Cell 36:234-44.

Defective in mitotic spindle orientation. Mis-segregation of germline proteins PGL-1 and PIE-1. Change of cell fate (extra-gut, no gut). Defective in chromosome segregation. Temperature sensitive; maintain at 15C; 100% lethal at 25C.

Rollers. n1270 is phenotypically wild type. neEx1[LIT-1::GFP + rol-6(su1006)]. LIT-1::GFP has full length LIT-1 fused to GFP in a YAC. Pick Rollers to maintain.

GFP tag inserted at C-terminus of endogenous ahcy-1 locus. Derived by out-crossing parental strain PHX646 two times to N2. Reference: Thapa P, et al. NPJ Aging. 2023 Dec 5;9(1):27. doi: 10.1038/s41514-023-00125-1. PMID: 38052822.

Engineered Y145C substitution mutation in endogenously GFP-tagged ahcy-1 locus. ahcy-1(Y145C) mutation mimics the pathogenic human mutation AHCY Y143C. ahcy-1(Y145C) mutants have a prolonged lifespan and are larger than control animals. ahcy-1(Y145C) mutants are fertile and produce a brood of laid and hatched eggs similar to control animals. ahcy-1(Y145C) mutants show a slight increase in SAH and a decrease in SAM levels, leading to an increased SAH to SAM ratio. See WOP122 for control strain. Derived by out-crossing parental strain PHX784 two times to N2. Reference: Thapa P, et al. NPJ Aging. 2023 Dec 5;9(1):27. doi: 10.1038/s41514-023-00125-1. PMID: 38052822.

neSi101 [sun-1p::TIR1::mRuby::eft-3 3'UTR + Cbr-unc-119(+)] IV. GFP reporter inserted into C-terminus of endogenous oma-1 locus. AID* degron tag (IAA17) inserted into the endogenous oma-2 locus. Reference: Ertekin A, et al. bioRxiv. 2025 May 12:2025.05.09.653132. doi: 10.1101/2025.05.09.653132. PMiD: 40463014.

neSi101 [sun-1p::TIR1::mRuby::eft-3 3'UTR + Cbr-unc-119(+)] IV. GFP reporter inserted into C-terminus of endogenous oma-1 locus. A triple arginine motif upstream of the oma-1 tandem zinc finger domain is mutated to three alanines. AID* degron tag (IAA17) inserted into the endogenous oma-2 locus. When OMA-2 is present, this mutant does not appear to have obvious phenotypes. Auxin-inducible depletion of OMA-2 causes embryonic lethality: animals lay low numbers of nonviable embryos that are often polynucleated and have weak chitin shells. Reference: Ertekin A, et al. bioRxiv. 2025 May 12:2025.05.09.653132. doi: 10.1101/2025.05.09.653132. PMiD: 40463014.

opIs34 [hus-1p::hus-1::GFP + unc-119(+)]. Low-copy integrated array of 1144 bp hus-1 promoter and genomic coding sequence fused to GFP. Nuclear expression of GFP in germ cells and embryos. Integrated GFP construct completely rescues DNA damage induced cell cycle arrest defect and partially rescues DNA damage induced apoptosis of hus-1(op241).

opIs56 [egl-1p::2xNLS::GFP]. opIs56 is a low copy integrant of 3 kb 5' sequence from egl-1 fused to 2xNLS GFP. unc-119(ed3) should be outcrossed. Low basal GFP expression in embryos, meiotic germ cells and several neurons. GFP expression can be induced by ionizing radiation in all germ cells. Best viewed with dissected gonads.

opIs110 [lim-7p::YFP::actin + unc-119(+)] IV. YFP::ACT-5 expressed in somatic sheath cells, marks pre-disc corpses.

Sterile or nearly sterile. Extra programmed cell death in germline. Maintain at 20 C. Reference: Kritikou et al. 2006 Genes Dev 20(16):2279-92.